---
product_id: 254644770
title: "Advantage II​ - Large Cat"
brand: "advantage"
price: "€ 231.72"
currency: EUR
in_stock: null
reviews_count: 5
category: "Advantage"
url: https://www.desertcart.sk/products/254644770-advantage-ii-large-cat
store_origin: SK
region: Slovakia
---

# Waterproof after 24 hours Kills fleas within 12 hours 30-day continuous protection Advantage II​ - Large Cat

**Brand:** advantage
**Price:** € 231.72
**Availability:** ❌ Out of Stock

## Summary

> 🛡️ Protect your big cat like a pro—because they deserve the best!

## Quick Answers

- **What is this?** Advantage II​ - Large Cat by advantage
- **How much does it cost?** € 231.72 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/254644770-advantage-ii-large-cat)

## Best For

- advantage enthusiasts

## Why This Product

- Trusted advantage brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Month-Long Defense:** Breaks the flea life cycle with 30 days of uninterrupted protection.
- • **Effortless Application:** Spot-on treatment applied in seconds—no pills, no collars, no hassle.
- • **Rapid Flea Elimination:** Starts killing fleas on contact within 12 hours—no biting needed.
- • **Subscription Convenience:** Never miss a dose with doorstep deliveries—stay ahead of infestations effortlessly.
- • **Vet-Recommended Reliability:** Trusted by professionals for safe, effective flea control on large cats over 9 lbs.

## Overview

Advantage Bayer II for Large Cats is a vet-recommended topical flea treatment designed for cats over 9 lbs. It kills adult fleas, larvae, and eggs within 12 hours and provides 30 days of waterproof protection. Easy to apply and fragrance-free, it effectively breaks the flea life cycle to prevent infestations and associated health risks. Available over the counter and via subscription for hassle-free monthly care.

## Description

Advantage II Large Cat is a vet-recommended, leading brand in cat flea protection. Advantage II Large Cat flea treatment and prevention kills adult fleas, flea larvae and flea eggs to deliver total flea protection to your cat or kitten. Within 12 hours of application, Advantage II Large Cat topical treatment gets straight to work killing fleas through contact, so they don&x2019;t have to bite your cat to die. This treatment works hard for 30 days following application, effectively breaking the flea life cycle, controlling existing flea infestations and preventing further infestations all month long. Fleas not only cause discomfort; they can also pose other health risks. Monthly use of Advantage II Large Cat is important to protect your cat against fleas that may cause transmission of tapeworms, Flea Allergy Dermatitis and flea bite anemia. That&x2019;s why Advantage II Large Cat makes applying treatment simple. This convenient, spot-on application goes on the back of your cat&x2019;s neck at the base of the skull. You&x2019;ll simply place the tip of the tube on the skin and squeeze the tube to expel the entire contents directly on the skin. It goes on in seconds! It's easier than a flea collar and there are no hard-to-swallow pills. You&x2019;ll also love that Advantage II Large Cat is fragrance-free and waterproof after 24 hours of application. Check the product label for information on application and potential side effects. Advantage II Large Cat flea protection is effective on both indoor and outdoor cats. Your cat should be at least 8 weeks old and weigh over 9 lbs. to use Advantage II Large Cat. For the ultimate convenience in care, Advantage II Large Cat is available over the counter &x2013; no prescription needed. And, you can stock up with a subscription for regular doorstep deliveries so you never miss a monthly treatment. Advantage II Large Cat is a trademark of Elanco or its affiliates.

Review: Worked well for our cats. We have two three year old large maine coons and a four year old large rag doll. We used the Capstar pill first and then applied the Advantage topical 8 hours later. They had no reaction to the Advantage, aside from stopping itching. We travel with them and for the first time they picked up a few fleas during our recent September trip. So we wanted something pretty quickly to prevent the fleas from multiplying and causing ongoing issues. This combo worked well. We are noticing that they are scratching a bit now, but it is early for their second monthly treatment and we haven't found any live fleas. So I'm not quite sure what the occasional itching is about now. Overall, this flea method worked well though. The capstar does make cats run and get agitated for an hour or so since it kills the fleas on them and I guess they feel the fleas moving on them as they die. Aside from zoomys, and excessive self grooming the first few hours after ingesting the Capstar pill, no other issues though. And there was no observable reaction to the Advantage topical at all.
Review: My vet recommend this brand It is easy to use and a great value for the money , I have them on reorder so I never have to worry. About them missing a dose and you save money !

## Features

- manufacturer: Bayer Animal Health
- Item Trademark: BAYER ANIMAL HEALTH
- Item Weight: ounces, pounds, 0.05000, 0.8
- Item Category: Pet Pest Control

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004QBDO0M |
| Batteries Included | No |
| Best Sellers Rank | #22,613 in Pet Supplies ( See Top 100 in Pet Supplies ) #14 in Cat Flea Drops |
| Customer Reviews | 4.6 4.6 out of 5 stars (36,038) |
| Date First Available | 7 August 2012 |
| Item Form | Topical |
| Item Weight | 22.6 g |
| Item model number | 86336774 |
| Pet Life Stage | Kitten |
| Product Dimensions | 3.49 x 11.11 x 16.83 cm; 22.68 g |
| Quantity | 1 |
| Volume | 4.8 Milliliters |
| batteries required | No |

## Product Details

- **Active Ingredients:** Imidacloprid: 9.10%, Pyriproxyfen: 0.46%
- **Brand:** Advantage
- **Item form:** Topical
- **Item weight:** 0.8 Ounces
- **Scent:** Unscented

## Images

![Advantage II​ - Large Cat - Image 1](https://m.media-amazon.com/images/I/71ewEsAQ4WL.jpg)

## Questions & Answers

**Q: Why is the item called "Bayer K9 Advantix II Flea and Tick Control Treatment for Cats"? The Bayer K9 is, of course, for dogs.**
A: Please be sure to use ONLY Feline Advantage on cats and use ONLY the dog Advantage on dogs! The use of canine Advantage on cats WILL kill them giving them severe neurological damage! I wish that Advantage would make the packaging TOTALLY different for cats and dogs, it would help. Especially with people who may not see the difference at first glance. My elderly mom accidentally applied the large dog Advantage to her cat and it had to be put down. Mom has felt horrible about it. Awful experience. Also about dosing, I have a 19 year old cat and I have used feline Advantage on him every summer for about 3 months for well over 17 years. It works wonderfully for him. I have always used the large cat product but since he has lost some weight this year I called Bayer and asked if I should use a smaller dose. The person at Bayer explained that Advantage works on body AREA as well as weight. So even though my cat has lost some weight (he's 9 pounds) his body AREA is still the same (loose skin)  and so I have been applying the large cat dose and it has worked well for him this summer with no ill effects.  I cannot speak to the authenticity of this Amazon product as I purchase my Advantage from the local pet store.

**Q: When using this medicine, do I also need to flea bomb or spray the apartment ? Or will the medicine kill all fleas in the apartment, as well?**
A: You'll find a wide range of advice on here.  I can only tell you what has worked for me on several occasions.  This topical treatment will kill only the fleas that get on your cat.  There are several options for your home.  They range from safe/natural formulas to strong pesticides.  The all safe/natural offerings work for a short time and only kill the fleas that come in contact with the spray.  I keep a bottle outside to spray on my feet and ankles to kill the fleas from outside that have hopped on me while in the yard.  Great for this and for bedding.  Next, as for bombs - there is only one that I have found that works.  Most bombs are cans of spray that has a button that locks down to empty the can of spray.  They may work but only cover a very small area effectively.  Raid makes a bomb that you drop into a supplied plastic cup with about an inch of water in it.  When the bomb canister hits the water, it will begin to smoke.  The smokenfills the entire area.  Three cannisters come in the box and can cover a small house effectively, every nook and cranny.  It is called Raid Fumigator.  I have NEVER had to use it twice.  This type of treatment requires you to remove ALL pets for about 6 hours, but it does work.  Raid also makes a carpet spray that works well.  But again, pets must not be around it until the fumes die down - about 30-40 minutes.  Two other options are Boric Acid or diotemaceus earth (food grade!).  These two products are applied similarly.  You sprinkle them on carpet or furniture and take broom or brush to rub them in.  This will take a few days to a week or so to get control of a home invasion.  They work by cutting the exo-skeleton of fleas, roaches, etc and cause them to dehydrate.  The Boric Acid can cause irritation to some pets or people, where the diotemac ous earth is 100% safe other than breathing the fine dust that occurs only when you are applying it.  Both work great!  The problem with a lot of people complaining that a product doesn't work is that they don't realize that the flea you see is only 5% of what is in your house.  The other 95% are eggs (laid about 50 at a time) and the larvae.  There is a cycle that last up to several weeks.  When these doubters kill the 5% adult fleas and then find more fleas a few days later, they think it doesn't work.  But in reality, they are see new hatchlings.  That's where the Boric Acid and Diotemaceus earth come in handy if you can't use the Fumigator.  An infested home can seem unsurmountable but try the products that you feel safe with, give it time and vacuum everyday you can and you will win!

**Q: Is this 6 month supply a 6 pack of tubes?**
A: Hi Doreen... Actually, I bought the 4 pack because I have four cats.  I had earlier in the month bought a 4 pack someplace else, so I had two treatments for each cat.  I did the treatments three weeks apart (the instructions say it is OK to do if you wait seven days).  I bought the 9+ lb. package as three of the cats are well over that weight.  One cat is a bit smaller and I didn't use quite all of the tube on her.  None of the cats had any bad reactions, and it worked well for three of them.  The other cat (partial Maine Coon) had some results, but not so good.

**Q: Does this kill ticks? If not, what do people recommend for ticks?**
A: To get rid of fleas and ticks use Frontline Plus. I started to use it on mine a year ago it killed the ticks and fleas. I reapply it every other month and I haven’t seen one since.

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by S***L on 14 October 2025*

Worked well for our cats. We have two three year old large maine coons and a four year old large rag doll. We used the Capstar pill first and then applied the Advantage topical 8 hours later. They had no reaction to the Advantage, aside from stopping itching. We travel with them and for the first time they picked up a few fleas during our recent September trip. So we wanted something pretty quickly to prevent the fleas from multiplying and causing ongoing issues. This combo worked well. We are noticing that they are scratching a bit now, but it is early for their second monthly treatment and we haven't found any live fleas. So I'm not quite sure what the occasional itching is about now. Overall, this flea method worked well though. The capstar does make cats run and get agitated for an hour or so since it kills the fleas on them and I guess they feel the fleas moving on them as they die. Aside from zoomys, and excessive self grooming the first few hours after ingesting the Capstar pill, no other issues though. And there was no observable reaction to the Advantage topical at all.

### ⭐⭐⭐⭐⭐ Review
*by K***R on 10 January 2026*

My vet recommend this brand It is easy to use and a great value for the money , I have them on reorder so I never have to worry. About them missing a dose and you save money !

### ⭐⭐⭐⭐⭐ Review
*by J***E on 13 January 2026*

Buying this through Amazon is one of the cheapest ways to get this medicine for mom's cats. It is so helpful, too!

## Frequently Bought Together

- Advantage II Large Cat Vet-Recommended Flea Treatment & Prevention | Cats Over 9 lbs. | 6-Month Supply
- Advantage II Small Cat Vet-Recommended Flea Treatment & Prevention | Cats 5-9 lbs. | 6-Month Supply
- Advantage II XL Dog Vet-Recommended Flea Treatment & Prevention | Dogs Over 55 lbs. | 6-Month Supply

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-24*